#!/usr/bin/perl -w
# Copyright 2012, 2013, 2014, 2015, 2016, 2017 Kevin Ryde
# This file is part of Math-PlanePath.
#
# Math-PlanePath is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3, or (at your option) any later
# version.
#
# Math-PlanePath is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with Math-PlanePath. If not, see <http://www.gnu.org/licenses/>.
use 5.004;
use strict;
use Test;
plan tests => 39;;
use lib 't';
use MyTestHelpers;
BEGIN { MyTestHelpers::nowarnings(); }
require Math::PlanePath::CfracDigits;
#------------------------------------------------------------------------------
# VERSION
{
my $want_version = 126;
ok ($Math::PlanePath::CfracDigits::VERSION, $want_version,
'VERSION variable');
ok (Math::PlanePath::CfracDigits->VERSION, $want_version,
'VERSION class method');
ok (eval { Math::PlanePath::CfracDigits->VERSION($want_version); 1 },
1,
"VERSION class check $want_version");
my $check_version = $want_version + 1000;
ok (! eval { Math::PlanePath::CfracDigits->VERSION($check_version); 1 },
1,
"VERSION class check $check_version");
my $path = Math::PlanePath::CfracDigits->new;
ok ($path->VERSION, $want_version, 'VERSION object method');
ok (eval { $path->VERSION($want_version); 1 },
1,
"VERSION object check $want_version");
ok (! eval { $path->VERSION($check_version); 1 },
1,
"VERSION object check $check_version");
}
#------------------------------------------------------------------------------
# n_start, x_negative, y_negative
{
my $path = Math::PlanePath::CfracDigits->new;
ok ($path->n_start, 0, 'n_start()');
ok ($path->x_negative, 0, 'x_negative()');
ok ($path->y_negative, 0, 'y_negative()');
ok ($path->class_x_negative, 0, 'class_x_negative() instance method');
ok ($path->class_y_negative, 0, 'class_y_negative() instance method');
}
{
my @pnames = map {$_->{'name'}}
Math::PlanePath::CfracDigits->parameter_info_list;
ok (join(',',@pnames), 'radix');
}
#------------------------------------------------------------------------------
# first few points
{
my @data = ([ 12590, 26,269 ],
);
my $path = Math::PlanePath::CfracDigits->new;
foreach my $elem (@data) {
my ($n, $want_x, $want_y) = @$elem;
my ($got_x, $got_y) = $path->n_to_xy ($n);
ok ($got_x, $want_x, "x at n=$n");
ok ($got_y, $want_y, "y at n=$n");
}
foreach my $elem (@data) {
my ($want_n, $x, $y) = @$elem;
next unless $want_n==int($want_n);
my $got_n = $path->xy_to_n ($x, $y);
ok ($got_n, $want_n, "n at x=$x,y=$y");
}
foreach my $elem (@data) {
my ($n, $x, $y) = @$elem;
if ($n == int($n)) {
my ($got_nlo, $got_nhi) = $path->rect_to_n_range (0,0, $x,$y);
ok ($got_nlo == 0, 1, "rect_to_n_range() got_nlo=$got_nlo at n=$n,x=$x,y=$y");
ok ($got_nhi >= $n, 1, "rect_to_n_range(0,0,$x,$y) got_nhi=$got_nhi at n=$n,x=$x,y=$y");
($got_nlo, $got_nhi) = $path->rect_to_n_range ($x,$y, $x,$y);
ok ($got_nlo <= $n, 1, "rect_to_n_range() got_nlo=$got_nlo at n=$n,x=$x,y=$y");
ok ($got_nhi >= $n, 1, "rect_to_n_range() got_nhi=$got_nhi at n=$n,x=$x,y=$y");
}
}
}
#------------------------------------------------------------------------------
# _digit_split_1toR_lowtohigh()
{
foreach my $elem ([ 3, 12590, 2,2,3,3,1,3,1,2,1 ], # low to high
[ 3, 0, ], # empty
[ 3, 1, 1 ], # empty
[ 3, 1, 1 ],
[ 3, 2, 2 ],
[ 3, 3, 3 ],
[ 3, 4, 1,1 ],
[ 3, 5, 2,1 ],
[ 3, 6, 3,1 ],
[ 3, 7, 1,2 ],
) {
my ($radix, $n, @want_digits) = @$elem;
my @got_digits = Math::PlanePath::CfracDigits::_digit_split_1toR_lowtohigh($n,$radix);
my $want_digits = join(',',@want_digits);
my $got_digits = join(',',@got_digits);
ok ($want_digits, $got_digits, "_digit_split_1toR() at n=$n radix=$radix");
}
}
#------------------------------------------------------------------------------
# _n_to_quotients_bottomtotop()
{
foreach my $elem ([ 2, 12590, 8,1,2,10 ], # bottom to top
[ 2, 0, 2 ], # N=0 one empty
[ 2, 1, 3 ], # N=1
[ 2, 2, 4 ], # N=2
[ 2, 3, 2,1 ], # N=3 two empties
) {
my ($radix, $n, @want_quotients) = @$elem;
{
my @got_quotients = Math::PlanePath::CfracDigits::_n_to_quotients_bottomtotop($n,$radix);
my $want_quotients = join(',',@want_quotients);
my $got_quotients = join(',',@got_quotients);
ok ($got_quotients, $want_quotients,
"_n_to_quotients() at n=$n radix=$radix");
}
}
}
#------------------------------------------------------------------------------
# _cfrac_join_toptobottom()
{
foreach my $elem ([ 2, 12590, 10,2,1,7 ], # top to bottom
[ 2, 0, 1 ],
[ 2, 1, 2 ],
[ 2, 3, 1,1 ],
) {
my ($radix, $n, @quotients) = @$elem;
{
my $got_n = Math::PlanePath::CfracDigits::_cfrac_join_toptobottom(\@quotients,$radix);
ok ($got_n == $n, 1,
"_quotients_join() at n=$n radix=$radix got_n=$got_n");
}
}
}
#------------------------------------------------------------------------------
exit 0;